Lac Éphrem is a Lake located in Lac-au-Brochet; La Haute-Côte-Nord, Quebec and has an elevation of 224 meters.

• Latitude: 48° 51' 58'' North   (decimal: 48.8661415)
• Longitude: 69° 26' 17'' West   (decimal: -69.4381113)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 224 meters
• Location: Lac-au-Brochet; La Haute-Côte-Nord
• Atlas of Canada Locator Map: Lac Éphrem
• GPS Coordinate Locator Map: Lac Éphrem Lat/Long